Overview
The Texas Instruments LM3671MF-ADJ/NOPB is a highly efficient step-down DC-DC converter designed to power low-voltage circuits from a single Li-Ion cell battery or input voltage rails ranging from 2.7 V to 5.5 V. This device is optimized for use in mobile phones and other portable systems, offering superior performance and features to extend battery life and improve system control.
Key Specifications
| Specification | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM3671MF-ADJ/NOPB |
| Package | SOT-23-5 |
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Voltage Range | 1.1 V to 3.3 V (Adjustable) |
| Maximum Output Current | 600 mA |
| Switching Frequency | 2 MHz (typical) |
| Quiescent Current | 16 μA (typical) in PFM mode |
| Shutdown Current | 0.01 μA (typical) |
| Operating Temperature Range | -30 °C to +85 °C |
| Dimensions | 2.92 x 1.6 x 1.02 mm |
Key Features
- Automatic PFM-PWM mode switching for improved efficiency and reduced noise.
- Internal synchronous rectification for high efficiency.
- Internal soft start to prevent inrush current.
- Current overload and thermal shutdown protection.
- Only three external components required (one inductor, two ceramic capacitors).
- Hysteretic PFM mode to extend battery life by reducing quiescent current during light load and standby operation.
Applications
The LM3671MF-ADJ/NOPB is particularly suited for powering low-voltage circuits in mobile phones, tablets, and other portable electronic devices. It is also applicable in various battery-powered systems where high efficiency and low quiescent current are essential.
Q & A
- What is the input voltage range of the LM3671MF-ADJ/NOPB?
The input voltage range is from 2.7 V to 5.5 V. - What is the maximum output current of the LM3671MF-ADJ/NOPB?
The maximum output current is 600 mA. - What is the typical switching frequency of the LM3671MF-ADJ/NOPB?
The typical switching frequency is 2 MHz. - What is the quiescent current in PFM mode?
The quiescent current in PFM mode is typically 16 μA. - Does the LM3671MF-ADJ/NOPB have built-in protection features?
Yes, it includes current overload and thermal shutdown protection. - What is the operating temperature range of the LM3671MF-ADJ/NOPB?
The operating temperature range is from -30 °C to +85 °C. - How many external components are required for the LM3671MF-ADJ/NOPB?
Only three external components are required: one inductor and two ceramic capacitors. - Is the LM3671MF-ADJ/NOPB RoHS compliant?
Yes, it is RoHS compliant. - What is the package type of the LM3671MF-ADJ/NOPB?
The package type is SOT-23-5. - What are the dimensions of the LM3671MF-ADJ/NOPB?
The dimensions are 2.92 x 1.6 x 1.02 mm.
